EventLogApplicationInsightsConfig.cs

public static class EventLogApplicationInsightsConfig
    {
        private static readonly TelemetryClient telemetryClient = new TelemetryClient(new TelemetryConfiguration("INSTRUMENTATION KEY"));
        public static void ConfigureListener()
        {
            EventLogEvents.LogEvent.After += LogToApplicationInsights;
        }

        private static void LogToApplicationInsights(object sender, LogEventArgs e)
        {
            switch (e.Event.EventType)
            {
                case "E":
                    var exceptionTelemetry = new ExceptionTelemetry(e.Event.Exception);
                    exceptionTelemetry.Properties.Add("machineName", e.Event.EventMachineName);
                    exceptionTelemetry.Properties.Add("description", e.Event.EventDescription);
                    telemetryClient.TrackException(exceptionTelemetry);
                    break;
                case "W":
                    var traceTelemetry = new TraceTelemetry(e.Event.EventDescription, SeverityLevel.Warning);
                    traceTelemetry.Properties.Add("machineName", e.Event.EventMachineName);
                    traceTelemetry.Properties.Add("description", e.Event.EventDescription);
                    traceTelemetry.Properties.Add("exceptionMessage", e.Event.Exception?.Message);
                    telemetryClient.TrackTrace(traceTelemetry);
                    break;
                default:
                    var verboseTelemetry = new TraceTelemetry(e.Event.EventDescription, SeverityLevel.Verbose);
                    verboseTelemetry.Properties.Add("machineName", e.Event.EventMachineName);
                    verboseTelemetry.Properties.Add("description", e.Event.EventDescription);
                    telemetryClient.TrackTrace(verboseTelemetry);
                    break;
            }
        }
    }